Finding the Fourth Proportional to 72,480.34, 108,615.58 and 49,967.91

Step by Step Solution

1. Step 1: Write the proportion equation
   72,480.34 : 108,615.58 = 49,967.91 : x
2. Step 2: Convert to fraction form
   72,480.34/108,615.58 = 49,967.91/x
3. Step 3: Cross multiply
   72,480.34x = 108,615.58 × 49,967.91
4. Step 4: Simplify right side
   72,480.34x = 5,427,293,526.04
5. Step 5: Solve for x
   x = 5,427,293,526.04/72,480.34
6. Step 6: Final answer
   x = 74,879.53